The hex color #eff8ac is a light color. The web-safe version is Hex
#FFFF99. A complementary color is
#100753. The grayscale version is
#DCDCDC. A 20% lighter version of the original color is
#FFFFDF, and Hex
#BCC579 is the 20% darker color. If the color is saturated by 10%, you get
#F1FBA7. If the color is desaturated by 10%, the color
#EDF5B1 is obtained.